3 January 2012, 15:23
(3 January 2012, 15:12)WetandCold Wrote: Just remember what keeps them out keeps you in.
Good point, which of us was it who planned to brick up a window or passage way with cement blocks 9 not cinder blocks) and he cut em with a stihl saw so they were slightly wedge shaped, IE when the wall was up if you pushed or hammered from the outside the tapered shape of the blocks tightens up, but if on the inside a swift whack with a hammer drives the tapered or wedged shape blocks out so you can escape?